package org.example.forum.controller;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import org.example.forum.common.AppResult;
import org.example.forum.common.ResultCode;
import org.example.forum.config.AppConfig;
import org.example.forum.model.User;
import org.example.forum.services.IUserService;
import org.example.forum.utils.MD5Util;
import org.example.forum.utils.StringUtil;
import org.example.forum.utils.UUIDUtil;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

@Slf4j
@Api(tags = "用户接口")
@RestController
@RequestMapping("/user")
public class UserController {
    @Resource
    private IUserService userService;
    @ApiOperation("用户注册")
    @PostMapping("/register")
    public AppResult register(@ApiParam("用户名") @RequestParam("username") @NonNull String username,
                              @ApiParam("昵称") @RequestParam("nickname") @NonNull String nickname,
                              @ApiParam("密码") @RequestParam("password") @NonNull String password,
                              @ApiParam("确认密码") @RequestParam("passwordRepeat") @NonNull String passwordRepeat){

        if (!password.equals(passwordRepeat)){
            log.warn(ResultCode.FAILED_TWO_PWD_NOT_SAME.toString());
            return AppResult.failed(ResultCode.FAILED_TWO_PWD_NOT_SAME);
        }
        User user = new User();
        user.setUsername(username);
        user.setNickname(nickname);
        //处理密码
        //1.生成盐
        String salt = UUIDUtil.UUID_32();
        String encryptPassword = MD5Util.md5Salt(password, salt);
        user.setPassword(encryptPassword);
        user.setSalt(salt);
        userService.createNormalUser(user);
        return AppResult.success();
    }
    /**
     * 用户登录
     * @param username 用户名
     * @param password 密码
     */
    @ApiOperation("用户登录")
    @PostMapping("/login")
    public AppResult login( HttpServletRequest request,
                            @ApiParam("用户名") @RequestParam("username") @NonNull String username,
                            @ApiParam("密码") @RequestParam("password") @NonNull String password){
        User user = userService.login(username, password);
        if (user == null){
            // 打印日志
            log.warn(ResultCode.FAILED_LOGIN.toString());
            // 返回结果
            return AppResult.failed(ResultCode.FAILED_LOGIN);
        }
        HttpSession session=request.getSession();
        session.setAttribute(AppConfig.USER_SESSION, user);
        return AppResult.success();
    }
    @ApiOperation("获取用户信息")
    @GetMapping("/info")
    public AppResult< User> getUserInfo(HttpServletRequest request,
                                        @ApiParam("用户Id") @RequestParam(value = "id", required = false) Long id){
        User user = null;
        if (id == null){
            HttpSession session=request.getSession(false);
            user= (User) session.getAttribute(AppConfig.USER_SESSION);
        }else {
            user=userService.selectById(id);
        }
        if (user == null){
            return AppResult.failed(ResultCode.FAILED_USER_NOT_EXISTS);
        }
        return AppResult.success(user);
    }

    @ApiOperation("退出登录")
    @GetMapping("/logout")
    public AppResult logout(HttpServletRequest request){
        HttpSession session=request.getSession(false);
        if (session!=null){
            // 打印日志
            log.info("退出成功");
            // 表示用户在登录状态，直接销毁session
            session.invalidate();
        }
        return AppResult.success("退出成功");
    }
    @ApiOperation("修改个人信息")
    @PostMapping("/modifyInfo")
    public AppResult modifyInfo (HttpServletRequest request,
                                 @ApiParam("用户名") @RequestParam(value = "username",required = false) String username,
                                 @ApiParam("昵称") @RequestParam(value = "nickname",required = false) String nickname,
                                 @ApiParam("性别") @RequestParam(value = "gender",required = false) Byte gender,
                                 @ApiParam("邮箱") @RequestParam(value = "email",required = false) String email,
                                 @ApiParam("电话号") @RequestParam(value = "phoneNum",required = false) String phoneNum,
                                 @ApiParam("个人简介") @RequestParam(value = "remark",required = false) String remark) {
        if (StringUtil.isEmpty(username) && StringUtil.isEmpty(nickname)
                && StringUtil.isEmpty(email) && StringUtil.isEmpty(phoneNum)
                && StringUtil.isEmpty(remark) && gender == null) {
            // 返回错误信息
            return AppResult.failed("请输入要修改的内容");
        }
        HttpSession session=request.getSession(false);
        User user= (User) session.getAttribute(AppConfig.USER_SESSION);
        // 3. 封装对象
        User updateUser = new User();
        updateUser.setId(user.getId()); // 用户Id
        updateUser.setUsername(username); // 用户名
        updateUser.setNickname(nickname); // 昵称
        updateUser.setGender(gender); // 性别
        updateUser.setEmail(email); // 邮箱
        updateUser.setPhoneNum(phoneNum); // 电话
        updateUser.setRemark(remark); // 个人简介
        // 4. 调用Service中的方法
        userService.modifyInfo(updateUser);
        // 5. 查询最新的用户信息
        user = userService.selectById(user.getId());
        // 6. 把最新的用户信息设置到session中
        session.setAttribute(AppConfig.USER_SESSION, user);
        // 7. 返回结果
        return AppResult.success(user);
    }
    @ApiOperation("修改密码")
    @PostMapping("/modifyPwd")
    public AppResult modifyPassword (HttpServletRequest request,
                                     @ApiParam("原密码") @RequestParam("oldPassword") @NonNull String oldPassword,
                                     @ApiParam("新密码") @RequestParam("newPassword") @NonNull String newPassword,
                                     @ApiParam("确认密码") @RequestParam("passwordRepeat") @NonNull String passwordRepeat) {
        // 1. 校验新密码与确认密码是否相同
        if (!newPassword.equals(passwordRepeat)) {
            // 返回错误描述
            return AppResult.failed(ResultCode.FAILED_TWO_PWD_NOT_SAME);
        }
        // 2. 获取当前登录的用户信息
        HttpSession session = request.getSession(false);
        User user = (User) session.getAttribute(AppConfig.USER_SESSION);
        // 3. 调用Service
        userService.modifyPassword(user.getId(), newPassword, oldPassword);
        // 5. 返回结果
        return AppResult.success();
    }
}
